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Archived This topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.

‎10-21-2014 05:14 AM

HP Recommended

I have the same problem. I can recover by rebooting my HP EliteBook 840. I am using Win 7 64bit.

 

It happens when I powered up the laptop from the Sleep mode.

 

 

‎11-22-2014 09:30 AM

HP Recommended

I am having the exact same issues with this notebook and I have done a clean install of Windows 8.1 Pro x64. I downloaded all of the latest drivers for the notebook from the HP support page (for win 8.1) and I see there are a couple of unknown devices in the device manager. I have a feeling thats what the issue is but I do not see any drivers for the kb/hotkeys/FN keys. 

 

It would be nice to have an official response from HP outside of "install our support assistant" which it is very obvious from the OP did nothing to help the situation. 

‎11-23-2014 03:21 AM - edited ‎11-23-2014 04:31 AM

HP Recommended

Enter the BIOS and check to see if action keys is disabled. Enable it and the keys should operate as expected.

 

By hot keys are you referring to the function keys or the alternate functions attached to them?


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‎01-25-2015 06:53 AM

HP Recommended

Same problem here guys.  After waking from standby i can no longer change the brightness (either using hotkey or via the power options).  Only rebooting helps make them work again.

 

Suggestions that we should check the bios are ridiculous!  It works until i put the laptop in standby, after waking it wont work anymore.  Not a bios issue.

 

Windows 7.

 

Sometimes sound keys work, other times not. Almost always just the brightness ones.  Reboot always fixes it.

 

Why haven't HP responded to this?!?

‎01-25-2015 09:40 AM

HP Recommended
@GemeenAapje wrote:

Same problem here guys.  After waking from standby i can no longer change the brightness (either using hotkey or via the power options).  Only rebooting helps make them work again.

 

Suggestions that we should check the bios are ridiculous!  It works until i put the laptop in standby, after waking it wont work anymore.  Not a bios issue.

 

Windows 7.

 

Sometimes sound keys work, other times not. Almost always just the brightness ones.  Reboot always fixes it.

 

Why haven't HP responded to this?!?

Before you make statements like that perhaps you should consider reading up on what the BIOS is capable of and what it does. 

 

 


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‎03-11-2015 02:19 PM - edited ‎03-11-2015 02:43 PM

HP Recommended

 

Ok, You can ignore everything I posted here, It looks like the delete key has a physical problem. as wiggling it back and forth will allow it to work a bit.

 

I have a similar issue on an Elitebook 840 G1. The main symptom that I noticed was that the delete key would not work. This makes it tough to log onto the system when the domain requires Control-Alt-Delete to login.

 

Prior to the problem I re-installed the OS with Windows 7 Professional 64bit. I installed all missing drivers from the HP Support page. However the built in Keyboard was still showing as "Standard PS/2 Keyboard" I only noticed this after the problem came up. Uninstalling the keyboard driver allowed the system to install a driver that would work for a little while, but not for very long. It stopped functioning the next day.

 

I have reset the bios to defaults. This allowed the Keys to function until the next reboot.

I installed the "HP Hotkey Support" package from the drivers page. This allowed the keys to function until the next reboot.

I uninstalled the Keyboard Drivers from the device manager. This allowed the keys to function until the next reboot.

I even tried installing the Graphics drivers as was suggested on a previous page. This had no effect at all.

 

The only way to use this laptop currently is to use a USB keyboard. This completely negates the purpose of a laptop.

 

Edit: I have updated the BIOS from 1.21 to 1.30. This also had no effect.
After installing the HP Hotkey support driver the Keyboard now shows as "Standard 101/102-Key or Microsoft Natural PS/2 Keyboard for HP Hotkey Support" in device manager.

 

‎03-16-2015 11:43 AM

HP Recommended

I had a user with the exact same issue. I uninstalled his hot key driver update from HP.com and now all function keys work correctly. Hope you find this helpful.

‎12-06-2016 08:55 AM

HP Recommended

I'm having the exact same issue as described earlier.  The function keys (fn + f9 or fn + f10) for brightness sometimes stop working after my laptop wakes up from sleep mode.  Only a reboot seems to fix this.  Then they will work for a while, even through some sleep-wake cycles.

 

Could you give more details on what driver you uninstalled, and what version of driver apparently works?  I just installed the latest hot key driver, and it didn't help.  Seems strange to go backwards in versions of the driver to make it work.

 

Also, since this appears to be a long-term problem with the Elitebooks (at least), why hasn't HP fixed this in the latest driver?

 

OS: Windows 7 Professional, v6.1 (64-bit)

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